database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2026-01-06 05:22:24 +03:00
Code Activity

ndb - wl#2972 rbr blobs ndb api support

Browse Source 
storage/ndb/include/ndbapi/NdbBlob.hpp:
  rbr blobs ndb api support
storage/ndb/include/ndbapi/NdbDictionary.hpp:
  rbr blobs ndb api support
storage/ndb/include/ndbapi/NdbEventOperation.hpp:
  rbr blobs ndb api support
storage/ndb/ndbapi-examples/ndbapi_event/Makefile:
  rbr blobs ndb api support
storage/ndb/ndbapi-examples/ndbapi_event/ndbapi_event.cpp:
  rbr blobs ndb api support
storage/ndb/src/ndbapi/NdbBlob.cpp:
  rbr blobs ndb api support
storage/ndb/src/ndbapi/NdbDictionary.cpp:
  rbr blobs ndb api support
storage/ndb/src/ndbapi/NdbDictionaryImpl.cpp:
  rbr blobs ndb api support
storage/ndb/src/ndbapi/NdbDictionaryImpl.hpp:
  rbr blobs ndb api support
storage/ndb/src/ndbapi/NdbEventOperation.cpp:
  rbr blobs ndb api support
storage/ndb/src/ndbapi/NdbEventOperationImpl.cpp:
  rbr blobs ndb api support
storage/ndb/src/ndbapi/NdbEventOperationImpl.hpp:
  rbr blobs ndb api support
storage/ndb/test/ndbapi/test_event_merge.cpp:
  rbr blobs ndb api support
This commit is contained in:
unknown
2006-01-19 14:01:32 +01:00
parent 1e0f64fb18
commit cae0b6f9a8
13 changed files with 1057 additions and 224 deletions
Download Patch File Download Diff File Expand all files Collapse all files

169
storage/ndb/ndbapi-examples/ndbapi_event/ndbapi_event.cpp
View File

@@ -54,26 +54,32 @@
#include <stdio.h>
#include <iostream>
#include <unistd.h>
#ifdef VM_TRACE
#include <my_global.h>
#endif
#ifndef assert
#include <assert.h>
#endif
/**
*
* Assume that there is a table t0 which is being updated by
* Assume that there is a table which is being updated by
* another process (e.g. flexBench -l 0 -stdtables).
* We want to monitor what happens with columns c0,c1,c2,c3.
* We want to monitor what happens with column values.
*
* or together with the mysql client;
* Or using the mysql client:
*
* shell> mysql -u root
* mysql> create database TEST_DB;
* mysql> use TEST_DB;
* mysql> create table t0 (c0 int, c1 int, c2 char(4), c3 char(4),
* mysql> create table t0
* (c0 int, c1 int, c2 char(4), c3 char(4), c4 text,
* primary key(c0, c2)) engine ndb charset latin1;
*
* In another window start ndbapi_event, wait until properly started
*
insert into t0 values (1, 2, 'a', 'b');
insert into t0 values (3, 4, 'c', 'd');
insert into t0 values (1, 2, 'a', 'b', null);
insert into t0 values (3, 4, 'c', 'd', null);
update t0 set c3 = 'e' where c0 = 1 and c2 = 'a'; -- use pk
update t0 set c3 = 'f'; -- use scan
update t0 set c3 = 'F'; -- use scan update to 'same'
@@ -81,7 +87,18 @@
update t0 set c2 = 'G' where c0 = 1; -- update pk part to 'same'
update t0 set c0 = 5, c2 = 'H' where c0 = 3; -- update full PK
delete from t0;
*
insert ...; update ...; -- see events w/ same pk merged (if -m option)
delete ...; insert ...; -- there are 5 combinations ID IU DI UD UU
update ...; update ...;
-- text requires -m flag
set @a = repeat('a',256); -- inline size
set @b = repeat('b',2000); -- part size
set @c = repeat('c',2000*30); -- 30 parts
-- update the text field using combinations of @a, @b, @c ...
* you should see the data popping up in the example window
*
*/
@@ -95,12 +112,18 @@ int myCreateEvent(Ndb* myNdb,
const char *eventName,
const char *eventTableName,
const char **eventColumnName,
const int noEventColumnName);
const int noEventColumnName,
bool merge_events);
int main(int argc, char** argv)
{
ndb_init();
bool merge_events = argc > 1 && strcmp(argv[1], "-m") == 0;
bool merge_events = argc > 1 && strchr(argv[1], 'm') != 0;
#ifdef VM_TRACE
bool dbug = argc > 1 && strchr(argv[1], 'd') != 0;
if (dbug) DBUG_PUSH("d:t:");
if (dbug) putenv("API_SIGNAL_LOG=-");
#endif
Ndb_cluster_connection *cluster_connection=
new Ndb_cluster_connection(); // Object representing the cluster
@@ -134,12 +157,13 @@ int main(int argc, char** argv)
const char *eventName= "CHNG_IN_t0";
const char *eventTableName= "t0";
const int noEventColumnName= 4;
const int noEventColumnName= 5;
const char *eventColumnName[noEventColumnName]=
{"c0",
"c1",
"c2",
"c3"
"c3",
"c4"
};
// Create events
@@ -147,9 +171,14 @@ int main(int argc, char** argv)
eventName,
eventTableName,
eventColumnName,
noEventColumnName);
noEventColumnName,
merge_events);
int j= 0;
// Normal values and blobs are unfortunately handled differently..
typedef union { NdbRecAttr* ra; NdbBlob* bh; } RA_BH;
int i, j, k, l;
j = 0;
while (j < 99) {
// Start "transaction" for handling events
@@ -160,12 +189,17 @@ int main(int argc, char** argv)
op->mergeEvents(merge_events);
printf("get values\n");
NdbRecAttr* recAttr[noEventColumnName];
NdbRecAttr* recAttrPre[noEventColumnName];
RA_BH recAttr[noEventColumnName];
RA_BH recAttrPre[noEventColumnName];
// primary keys should always be a part of the result
for (int i = 0; i < noEventColumnName; i++) {
recAttr[i] = op->getValue(eventColumnName[i]);
recAttrPre[i] = op->getPreValue(eventColumnName[i]);
for (i = 0; i < noEventColumnName; i++) {
if (i < 4) {
recAttr[i].ra = op->getValue(eventColumnName[i]);
recAttrPre[i].ra = op->getPreValue(eventColumnName[i]);
} else if (merge_events) {
recAttr[i].bh = op->getBlobHandle(eventColumnName[i]);
recAttrPre[i].bh = op->getPreBlobHandle(eventColumnName[i]);
}
}
// set up the callbacks
@@ -174,13 +208,16 @@ int main(int argc, char** argv)
if (op->execute())
APIERROR(op->getNdbError());
int i= 0;
while(i < 40) {
NdbEventOperation* the_op = op;
i= 0;
while (i < 40) {
// printf("now waiting for event...\n");
int r= myNdb->pollEvents(1000); // wait for event or 1000 ms
int r = myNdb->pollEvents(1000); // wait for event or 1000 ms
if (r > 0) {
// printf("got data! %d\n", r);
while ((op= myNdb->nextEvent())) {
assert(the_op == op);
i++;
switch (op->getEventType()) {
case NdbDictionary::Event::TE_INSERT:
@@ -195,40 +232,66 @@ int main(int argc, char** argv)
default:
abort(); // should not happen
}
printf(" gci=%d\n", op->getGCI());
printf("post: ");
for (int i = 0; i < noEventColumnName; i++) {
if (recAttr[i]->isNULL() >= 0) { // we have a value
if (recAttr[i]->isNULL() == 0) { // we have a non-null value
if (i < 2)
printf("%-5u", recAttr[i]->u_32_value());
else
printf("%-5.4s", recAttr[i]->aRef());
} else // we have a null value
printf("%-5s", "NULL");
} else
printf("%-5s", "-");
printf(" gci=%d\n", (int)op->getGCI());
for (k = 0; k <= 1; k++) {
printf(k == 0 ? "post: " : "pre : ");
for (l = 0; l < noEventColumnName; l++) {
if (l < 4) {
NdbRecAttr* ra = k == 0 ? recAttr[l].ra : recAttrPre[l].ra;
if (ra->isNULL() >= 0) { // we have a value
if (ra->isNULL() == 0) { // we have a non-null value
if (l < 2)
printf("%-5u", ra->u_32_value());
else
printf("%-5.4s", ra->aRef());
} else
printf("%-5s", "NULL");
} else
printf("%-5s", "-"); // no value
} else if (merge_events) {
int isNull;
NdbBlob* bh = k == 0 ? recAttr[l].bh : recAttrPre[l].bh;
bh->getDefined(isNull);
if (isNull >= 0) { // we have a value
if (! isNull) { // we have a non-null value
Uint64 length = 0;
bh->getLength(length);
// read into buffer
unsigned char* buf = new unsigned char [length];
memset(buf, 'X', length);
Uint32 n = length;
bh->readData(buf, n); // n is in/out
assert(n == length);
// pretty-print
bool first = true;
Uint32 i = 0;
while (i < n) {
unsigned char c = buf[i++];
Uint32 m = 1;
while (i < n && buf[i] == c)
i++, m++;
if (! first)
printf("+");
printf("%u%c", m, c);
first = false;
}
printf("[%u]", n);
delete [] buf;
} else
printf("%-5s", "NULL");
} else
printf("%-5s", "-"); // no value
}
}
printf("\n");
}
printf("\npre : ");
for (int i = 0; i < noEventColumnName; i++) {
if (recAttrPre[i]->isNULL() >= 0) { // we have a value
if (recAttrPre[i]->isNULL() == 0) { // we have a non-null value
if (i < 2)
printf("%-5u", recAttrPre[i]->u_32_value());
else
printf("%-5.4s", recAttrPre[i]->aRef());
} else // we have a null value
printf("%-5s", "NULL");
} else
printf("%-5s", "-");
}
printf("\n");
}
} else
;//printf("timed out\n");
}
// don't want to listen to events anymore
if (myNdb->dropEventOperation(op)) APIERROR(myNdb->getNdbError());
if (myNdb->dropEventOperation(the_op)) APIERROR(myNdb->getNdbError());
the_op = 0;
j++;
}
@@ -250,7 +313,8 @@ int myCreateEvent(Ndb* myNdb,
const char *eventName,
const char *eventTableName,
const char **eventColumnNames,
const int noEventColumnNames)
const int noEventColumnNames,
bool merge_events)
{
NdbDictionary::Dictionary *myDict= myNdb->getDictionary();
if (!myDict) APIERROR(myNdb->getNdbError());
@@ -265,6 +329,7 @@ int myCreateEvent(Ndb* myNdb,
// myEvent.addTableEvent(NdbDictionary::Event::TE_DELETE);
myEvent.addEventColumns(noEventColumnNames, eventColumnNames);
myEvent.mergeEvents(merge_events);
// Add event to database
if (myDict->createEvent(myEvent) == 0)